Omega
Ref. 3510.50.00
Reference likely; verify by serial/reference inside the lugs or warranty card. Omega Calibre 1140 automatic chronograph (ETA 2892-A2 with Dubois-Depraz module), ~40h power reserve. 39mm stainless steel case, black aluminum tachymeter bezel, hesalite (acrylic) crystal, stainless steel bracelet with folding clasp, black dial with tritium luminous hour markers, 30m water resistance. Functions: chronograph, small seconds, 30-minute counter, 12-hour counter. Solid caseback with Omega Seahorse medallion. 18mm lug width. Made in Switzerland. Estimated production c. 1988-2009. NOTE: same reference as the "Speedmaster Reduced Automatic" entry earlier in this batch - please confirm these are two separate physical watches before importing both.
Specifications